干旱区生态环境知识资源中心(Arid): Soil loss hinders the restoration potential of tree plantations on highly eroded ravine slopes

Arid

DOI	10.1007/s11368-020-02833-7
	Soil loss hinders the restoration potential of tree plantations on highly eroded ravine slopes
	Kumar, Raj; Bhardwaj, A. K.; Rao, B. K.; Vishwakarma, A. K.; Kakade, Vijaysinha; Dinesh, D.; Singh, Gaurav; Kumar, Gopal; Pande, V. C.; Bhatnagar, P. R.; Bagdi, G. L.
通讯作者	Kumar, R ; Bhardwaj, AK
来源期刊	JOURNAL OF SOILS AND SEDIMENTS
ISSN	1439-0108
EISSN	1614-7480
英文摘要	Purpose Soil erosion and loss threatens vast tracts of agricultural and non-agricultural land, worldwide. High soil erosion severely affects establishment of vegetation via effects on plant growth and productivity on already degraded lands. However, information on soil loss impact on tree plantation and their relationships is scarce in the ravine lands. Therefore, we assessed soil loss effects on tree growth and soil characteristics, and role of conservation measures in degraded ravine land. Methods The study consisted of comparing three systems, i.e., terracing, trenching, and sole slope to observe the effects on soil erosion and the resultant losses. In first system, a terraced land was designed from ravine top to bottom by dividing the slope into the four plots. In second system, ninety-seven trenches sized 2.0 m x 0.5 m x 0.5 m were designed on slope, while in third system, a continuous slope was maintained. Twenty-seven trees were planted at 8 m x 8 m spacing in each system. In all the systems, annual runoff, soil loss, tree growth, biomass and carbon stock, and soil properties were observed for the 7 years. Results Annual soil loss was recorded highest (5.1 t ha(-1) year(-1)) in slope followed by trench (4.4 t ha(-1) year(-1)) and terrace (3.8 t ha(-1) year(-1)) systems, during the 7 years. In the slope system, increased soil loss resulted in the decreased tree height and collar diameter growth by 3-12% and 12-21%, respectively. Total biomass, carbon stock, and CO2 sequestration declined by 44-86% with the increased soil loss on the slope during the same period. Tree canopy area was also recorded lower in the slope, compared to terrace and trench measures. The soil loss relationship with tree characteristics revealed that growth, biomass, carbon stock, and canopy area consistently declined with the increased soil loss. In soil, proportional loss of organic carbon (11-21%), nitrogen (10-13%), phosphorus (25-32%), and potassium (4-13%) was also observed with increased soil erosion on the slope, compared to conservation measures. In contrast, soil loss reduction in the terrace and trench based measures improved the tree growth, biomass, carbon stock, and soil properties during the same period. Conclusion The soil loss negatively affected the tree growth, productivity and their restoration potential, while soil conservation measures showed strong potential to ameliorate the highly eroded ravine slopes. Therefore, tree plantations should be augmented with the appropriate soil and water conservation measures for achieving greater ecological and economic benefits in degraded ravine lands.
英文关键词	Soil loss Growth Productivity Soil conservation Restoration Climate change mitigation
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000589477100003
WOS关键词	CARBON STOCK ; EROSION ; RUNOFF ; RAIN ; DESERTIFICATION ; DYNAMICS ; BEHAVIOR ; GROWTH
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
来源机构	ICAR Central Arid Zone Research Institute
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328488
作者单位	[Kumar, Raj; Bhardwaj, A. K.; Bhatnagar, P. R.] ICAR Cent Soil Salin Res Inst, Karnal 132001, Haryana, India; [Kumar, Raj; Rao, B. K.; Vishwakarma, A. K.; Kakade, Vijaysinha; Dinesh, D.; Singh, Gaurav; Kumar, Gopal; Pande, V. C.; Bhatnagar, P. R.; Bagdi, G. L.] ICAR Indian Inst Soil & Water Conservat, Res Ctr, Anand 388306, Gujarat, India; [Rao, B. K.] Water & Land Management Training & Res Inst, Hyderabad 500030, Telangana, India; [Vishwakarma, A. K.] ICAR Indian Inst Soil Sci, Bhopal 462038, Madhya Pradesh, India; [Kumar, Gopal] ICAR Indian Inst Soil & Water Conservat, Dehra Dun 248195, Uttarakhand, India; [Bagdi, G. L.] ICAR Cent Arid Zone Res Inst, Reg Res Stn, Bikaner 334004, Rajasthan, India
推荐引用方式 GB/T 7714	Kumar, Raj,Bhardwaj, A. K.,Rao, B. K.,et al. Soil loss hinders the restoration potential of tree plantations on highly eroded ravine slopes[J]. ICAR Central Arid Zone Research Institute.
APA	Kumar, Raj.,Bhardwaj, A. K..,Rao, B. K..,Vishwakarma, A. K..,Kakade, Vijaysinha.,...&Bagdi, G. L..
MLA	Kumar, Raj,et al."Soil loss hinders the restoration potential of tree plantations on highly eroded ravine slopes".JOURNAL OF SOILS AND SEDIMENTS